Optical scanner



FIG. 1 is a top, bottom, left-side perspective view of a optical scanner showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is an left-side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan elevational view thereof; and,

FIG. 7 is a right-side elevational view thereof. 

The ornamental design for an optical scanner, as shown and described. 